Operations At The PT Exploitasi Energi Indonesia Coal Site

Bloomberg

A worker walks over stockpiles of coal in the smoke at the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

A worker walks over stockpiles of coal in the smoke at the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

Operations At The PT Exploitasi Energi Indonesia Coal Site

Bloomberg

A bulldozer operates at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

A bulldozer operates at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

Operations At The PT Exploitasi Energi Indonesia Coal Site

Bloomberg

A bulldozer forms a stockpile of coal at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

A bulldozer forms a stockpile of coal at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

Operations At The PT Exploitasi Energi Indonesia Coal Site

Bloomberg

A bulldozer forms a stockpile of coal at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

A bulldozer forms a stockpile of coal at a storage area of the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

Operations At The PT Exploitasi Energi Indonesia Coal Site

Bloomberg

A worker holds a lump of coal for a photograph at the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images

A worker holds a lump of coal for a photograph at the PT Exploitasi Energi Indonesia open pit coal mine in Palaran, East Kalimantan province, Indonesia, on Friday, Sept. 13, 2013. Prices of power-station coal in Indonesia, the worlds biggest exporter, may be little changed in coming weeks, according to Bloomberg News survey. Photographer: Dadang Tri/Bloomberg via Getty Images